msm: cpp: Reduce CPP timeout in case of hardware delay

If CPP driver does not receive interrupt from the
microcontroller for 300ms it resets IRQs and loads
firmware to the microcontroller again. In this period
some frames provided by VFE may be lost. To avoid
frame loss the timeout is set to 50ms.

Change-Id: I6bf9b2ac35118e4ff067f6c02b7608aa6fa2286e
Signed-off-by: Iliya Varadzhakov <ivarad@codeaurora.org>